LATIN DICTIONARYLexicon Latīnum
adverb

mĕdĭātĕnus

Meaning

  1. as far as the middle, half way over

Lewis & Short A Latin Dictionary, 1879

mĕdĭātĕnus, adv. mediā tenus, like hactenus,
I. as far as the middle, half way over, Mart. Cap. 6, § 683; 8, § 873 init.

Quick answers

What does mĕdĭātĕnus mean in Latin?
mĕdĭātĕnus, a adverb, means “as far as the middle, half way over”.